Behavior of Full-Scale Porous GFRP Barrier under Blast Loads

Table 1

Summary of the results of tensile failure tests on GFRP specimens.

	Failure stress [MPa]	Experimental ultimate strain	Chord modulus of elasticity [GPa]	Theoretical ultimate strain
Integral specimens (5 samples)	648.3 (11.5%)	0.0150 (4.8%)	44.1 (3.5%)	0.0147
Peeled specimens (6 samples)	736.5 (6.4%)	0.0153 (2.5%)	51.3 (2.1%)	0.0143

Terms in parentheses represent the coefficient of variation.
According to [5], chord modulus is evaluated as the ratio of stress increment over strain increment, corresponding to the strain interval from 0.001 to 0.003.
Evaluated as the ratio of the failure stress over the chord modulus of elasticity.